329148893 has 2 divisors, whose sum is σ = 329148894. Its totient is φ = 329148892.

The previous prime is 329148889. The next prime is 329148907. The reversal of 329148893 is 398841923.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245298244 + 83850649 = 15662^2 + 9157^2 .

It is an emirp because it is prime and its reverse (398841923) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 329148893 - 2² = 329148889 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (329148293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164574446 + 164574447.

It is an arithmetic number, because the mean of its divisors is an integer number (164574447).

Almost surely, 2^329148893 is an apocalyptic number.

It is an amenable number.

329148893 is a deficient number, since it is larger than the sum of its proper divisors (1).

329148893 is an equidigital number, since it uses as much as digits as its factorization.

329148893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 47.

The square root of 329148893 is about 18142.4610513568. The cubic root of 329148893 is about 690.4477196477.

The spelling of 329148893 in words is "three hundred twenty-nine million, one hundred forty-eight thousand, eight hundred ninety-three".